Door-operating mechanism for elevators.



u. 699.329. Patented may 6, |902.

.|. L. KAIL.

DUUR UPEBATING MECHANISM FOB ELEVATOBS.

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'i Il s y sin Np. 699,329. Patented May 6, |902.4

J. L. KAIL. D003. OPERATING MECHANISM FOR ELEVATORS.

Applxcation iiled Oct. 19, 1901.)

(Norldcdel.) 3 Sheets-Sheet 2.

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No. 699,329. Patented May 6, |902.

J. L. KAIL. 000B OPERATING IIECHANISII FOR ELEVATURS.

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W W/f im 'e UNTTnD v STATES ATnNT OFFICE.

JACKSON L. KAIL, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE \VINSLO\V BROS. CO., OF- CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

DOOR-OPERATING IVIECHANISIVI FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent No. 699,329, dated May 6, 1902 i Application filed October 19, 1901. Serial Np. 79.210. (No model.)

.To @ZZ 107mm/ :it may concern:

Be it known that I, JACKSON LKML, a citizen of the United States of America, residing at Chicago, in the county of Cook and State 4of Illinois, have invented certain new and useful Improvements in Door-Operating Mech-` In the dra-wings furnished herewith, Fig-V` ure 1 is a front elevation of a portion of an elevator-inclosure and a door with my im-l Fig. 2 isV proved mechanism applied thereto. a view partly in end elevation and partly in vertical cross-section, the line of section being indicated at 2 2 in Fig. l. Fig. 3 is a View partly in plan and partly in horizontal sec- Lion, the line of section being indicated at 3 in Figs. l, 2, and 4. Fig. 4. is an enlarged view of the operating mechanism seen in Fig. 1. Fig. 5 is a vertical longitudinal section in the line 5 5 of Figs. 3 and 6. Fig. 6 isaview partly in end elevation and partly in vertical cross-section, the line of section being indicated at 6 6 in Fig. l. Fig. 7 is a front view of a portion of a bar with the parts in front cut away in the line 7 in-Figs. 9 and 10. Fig. S is a longitudinalsection'in lne'S 8 of Fig. 10. Fig. 9 is a cross-section in line f) 9 of Fig. 8. Fig. 10 is a horizontal section in line 10 l0 of Fig. 8, and Fig. 1l is a perspective view of a sleeve used inl the device.- p

Referring rst to Fig. l, which shows a portion of an ordinary elevator-inclosnre, A A A2 are three uprights thereof, connected by a transom A3. Upon the frame thus formed may be supported an inclosing wall of ornamental pattern, leaving an opening a to be closed by the doorB. Said door is supported by hangers b b, running upon a track a', secured upon the uprights A A` A2 in the ordinary manner.

Adjacent to the upright A' extends a vcrtical shaft C, suitably supported and continu-l ously rotating in one direction. This shaft may extend from top to-bottom of the building and operate all of the elevator-doors located adjacent thereto. y n

The operating mechanism is contained in a preferably rectangular frame D, one end of which is supported upon the shaft C by a collar c and held in proper relation with the door by a brace (l, extending to a bracket d. The bracket d is supported by theupright A and has an arm (Z2 encircling the shaftC to form a bearing therefor at each floor. The frame D has bearing-hubs d3 d4, encircling the shaft, the hub Z4 resting upon the collar c. IVithin lthe frame D two beveled gears E F are loosely mounted upon the shaft C, both meshing with the beveled gear G, fast upon a shaft g. Said shaft extends through a worm-gear lI and bears without the same a washer h and nuts h h2 upon its reduced end h3. A` spring h4 encircles the shaft g and is confined between the washer 71, and the end of the Worm-gear H, thereby drawing the beveled pinion G upon thehead 725 of the worm-gear to create suicient friction between them to cause the worm-gear to rotate with the gear G. The

'ends of the worm-gear are reduced, as seen at h6 h, and journaled in openings (i7 d8, formed, respectively, in a cross-piece d5 and end piece d of the frame D, and the head h is secured to the worm by screws hs.

`A lever I is pivoted to the frame D at t' and lis provided with a projection I at its upper end for engagement witha shoe or other suitable mechanism upon the elevator-car for actuating said lever to throw the mechanism into gearand open the door. Said lever has two arms t" 2, Fig: 10, connected by screws t3 il to aspli-t collar K, which works between vtwo dan ges m @T1/.upon a sleeveM, Y Figs. 9 and 11, to raiseor lower said'sleeve by the action of the lever I. Said sleeve M is cut away at m4, Fig. 1l, to receive a strut N,secured to the shaft C and bearing against the gears E and F. The sleeve is free to move vertically upon the shaft, but is carried around with the shaft by the strut N and alternately connected to the gears E and F toclose or lopen the door. The sleeve is formed with clutchtcoth Iim fm", adapted to engage, respectively,

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. and said engagement is effected through the oscillation of the lever I. The sleeve is normally held out of engagement with either of the gears when the door is closed. A spring O is conined between the lever I and the arm d2 of the bracket CZ', the tension of said spring being to crowd the sleeve upward into en-v gagement with the gear E and said movement of the lever being limited by a stop p upon a bar P, Figs.l 7 and 9, when the door is closed. The arm t2 of the lever has two laterally-extending fingers 5 t, one above and one below the bar P, the finger 5 being adapted to be engaged by a stop p', similar to the stop p, but on the upper side of the bar, and the finger'z'6 by the stop p to throw the sleeve out of engagement with the gears E F. bar Pis supported upon the door B bybrackets b2 b3 b4 and engages the worm-gear II by means of pins 192, Fig. 3, said pins being arranged in pairs and meshing with the Wormgear. lIt is readily understood that the rotation of the worm-gear moves the door either into an open or closed position, depending upon the direction of rotation of the worm.

Fig. l shows the door in a position intermediate between a closed and open position and in the act of closing, the spring O holding the sleeve M in' engagement with the gear E. The direction of rotation of the shaft C is shown by the arrows, and because oi' the enp gagement of theA shaft with the bevel-gear E the worm is rotated in the direction indicated by lthe arrow andthe door closed. If, however, the'lever I is moved in the opposite direction, the gear F is thrown into engagement with the shaft, the worm rotated in the opposite direction, and the door opened. When the door reaches either of its extreme positions, the clutch is moved into its neutral position by engagement of one of the twov stops p p with the lever I.

I claim as new and desire to secure by Letters Patent-- l. Inadoor-operating mechanism, the combination with a suitable support, of a slidable Y door, a bar thereon having a series of laterally-extending pins, a worm parallel with said bar and in engagement with said pins and means for imparting rotation to said worm alternately in opposite directions; substantially as described.

The

said beveled gear upon opposite sides of its diameter and each adapted to be thrown into engagement with the shaft; substantially as described.

4. In combination, arotatableshaft, adoor, y

a bar upon said door, a worm-gear meshing with said bar, a beveled gear held in frictional contact with said Worm-gear, gears meshing with said beveled gear upon opposite sides thereof and means for throwing either of said gears into engagement with the shaft; substantially as described.

5. In combination, a rotatable shaft, a door, a worm-gear adapted by its rotation to operate said door, a beveled gear frictionally connected to the worm-gear, gears loose upon said shaft and meshing with said first-named gear upon opposite sides thereof, a sleeve non-rotatable with respect to the shaft but Vcapable of longitudinal movement thereon,

and adapted to connect either of said secondnamed gears to the shaft; substantially as described.

G. In combination, a rotatable shaft, a door, a bar supported thereon, a worm-gear meshing with said bar, and adapted to be thrown into or out of gear with the rotatable shaft and stops adapted to automatically throw said worm out of gear with the shaft when the door reaches its open or closed position; subnaled therein, a beveled gear, a shaft carrying said beveled gear and journaled in the worm, a spring adapted to hold the wormgear and beveled gear in frictional contact, beveled gears loose upon the first-named shaft and meshing with the first-named beveled gear, means for throwing either of said second-named beveled gears into engagement with the shaft, and a device on the door for engagement with the worm; substantially as described.

In witness whereof I have hereunto set my hand, at Chicago, in the county of Cook and State ofl Illinois, this 19th day of July, A. D. 1901.

JACKSON L. KAIL.

Vitnesses:

CHAs.'O. SHERVEY,

S. BLIss.

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